SPC AC 091556 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1056 AM CDT Sun Aug 09 2026 Valid 091630Z - 101200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON OVER PARTS OF THE MIDWEST...AND TONIGHT OVER PARTS OF THE DAKOTAS.... ...SUMMARY... Scattered damaging winds are possible today into this evening from southern Wisconsin eastward across parts of northern Illinois, southern Lower Michigan, northwest Ohio, and northern Indiana. ...Dakotas... 12z model guidance continues to decrease the confidence in overnight severe storms, with some CAM solutions showing no thunderstorms. The strength of the steering flow, instability, and mid-level moisture all appear favorable for a severe risk. ..Hart/Weinman.. 08/09/2026 CLICK TO GET WUUS01 PTSDY1 PRODUCT NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 2000Z